Gas-engine attachment



(No Model.)

M. M. BARRETT. GAS-ENGINE ATTACHMENT.

, 452,174. v Patented May 12, 1891,

c v wa;

I l I i i c 143/.

. I l v QWW/Lwom UNITED STATES PATENT OFFICE.

MORA M. BARRETT, OF SAN FRANCISCO, CALIFORNIA.

GAS-ENGINE ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 452,174, dated May 12,1891.

Application filed January 7, 1891. Serial No. 376,975. (No model.)

To all whom, it may concern.-

Be it known that I, MoRA M; BARRETT, a citizen of the United States,residing at the city and in the county of San Francisco, and State ofCalifornia, haveinvented certain new and useful Improvements inGas-Engine Attachments; and I do hereby declare the following to be afull, clear, and exact description of said invention, such as will enable others skilled in the art to which it most nearly appertains tomake, use, and practice the same.

My invention has relation to certain new and useful improvements -inelectric gas-engine attachments, which consists in the arrangement ofparts and details of construction, as will be. hereinafter more fullyset forth in the drawings, described, and pointed out in the claims.

The object of my invention is to provide for the retention by theelectrodes of the proper amount of ductility and flexibility for agreater length of time than when exposed to the direct action of theexploded gas within the engine-cylinder proper, as heretofore, and forthis purpose I employa supplemental or gas chamber outside of thegas-engine cylinder, wherein the electrodes are mounted so as to bewithin line of the inflowing cool gas, by means of which they aremaintained normally in a cool condition.

Referring to the drawings forming a part of this specification, whereinsimilar letters of reference are used to denote corresponding partsthroughout the specification and several views- Figure 1 is a sideelevation of the enginecylinder, partly broken away, showingsupplemental chamber secured thereto; Fig. 2, a top plan view thereof;Fig. 3, an enlarged sectional detail of the supplemental chamber,showing the electrodes; and Fig. 4, a top plan of the chamber with topremoved.

The letter A is used to indicate the gasengine cylinder, and 13 thepiston working therein.

Secured to the enginecylinder and connected to the interior thereof isthe supplemental chamber C, Within which works the Valve D, which isoperated by the inflow of gas through the supply-pipe D. To the interiorof said chamber I secure the electrodes E E, one to the insulatedbinding-posts e, the other to wall 6 of the chamber. Electrode E extendsforward through the opening 0 into the cylinder-chamber A, and has itsend bent or flanged downward, so as to form the finger 6 which isadapted to be engaged by the piston B as it move: upward, and by theupward stroke thereof to be lifted, so as to make contact with electrodeE. The electrode E may be hinged to wall e, bolted or otherwise securedthereto. As the piston moves downward the electrical current is broken,inasmuch as the resiliency or gravity of electrode E causes theseparation from electrode E, and the sparks produced by such separationserve to ignite the gas contained within the cylinder. 7.

The operation of the engine and the engine itself is similar, to allextents and purposes, to that shown and described in Letters Patent Nos.430,500 and4t30,505, consequently need not be set forth specificallyherein.

By practical working I have discovered that the electrodes when placedoutside the combustion-chamber proper retain their proper ductility andflexibility for a much greater length of time than when exposed to thedirect action of the exploded gas that is within the engine-cylinderproper, as heretofore. As the inflowing gas passes through thesupplemental or valve chamber it serves to maintain the electrodes in acool condition continually.

Having thus described my invention, what I claim as new, and desire tosecure protection in by Letters Patent of the United States,

1. The combination, with the gas-engine cylinder, of the supplementalchamber secured thereto, and electrodes secured therein, one of saidelectrodes being movable and terminating within the engine-cylinder, soas to be operated by the movement of the engine-piston, substantially asand for the purpose set forth.

2. In a gas-engine, the combination of the supplemental chamber,electrodes secured within said chamber outside the engine or combustioncylinder, one of said electrodes being movable and extending within theen gineeylinder, and a downwardly-extendin g linger ton, so as to makeand break the electrical IO circuit, as and for the purpose set forth.

I 11 testimony whereof I affix my signature in presence of twowitnesses.

MORA M. BARRET". \Vitnesses:

.TNo. F. DALY, N. A. AoKER.

